Automatic glove-stitching machine.



G. E. OATHOUT.

AUTOMATIC GLOVE 'smcmm'momm.

APPLIGATIONIILED MAY 25, 1912. 1 ,121,862 Patented Dec. 22, 1914.

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mmvroe @vwzw WIT/(E8858 ,4 TTORNEVS E. OATHGUT. AUTOMATIC GLOVE STITGHING MACHINE.

APPLICATION FILE-D MAY 25, 1912.

maimed Dec. 22, 1914.

Lfiwi n 42' SERIES-SHEET 2.

APPLICATION FILED MAY 1912,

Patented Dec. 22 1914.

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ATTOkNEYS WITNESSES G. EJOATHOUT. AUTOMATIC GLOVE STITGHING MACHINE.

APPLICATION FILED MAY 25, 1912. 1,121,862. Patented 1m. 22, 1914.

WITNESSES unrrnn snares ra 'rnnr reins.

GEORGE E. OATHGUT, OF WATERVLIET, NEW YORK, ASSIGNOR TG EDKVIN L. I/IEYEES AND DAVID E. MEYER, COPABTNEBS DOING BUSINESS AS LOUIS llIEYE-RS 3N3) SON, OF NEW YORK, N. Y.

AUTOMATIC enovn-srrronme MACHINE.

Specification o1 Letters-Patent.

Patented nee. ass a.

Application filed May 25 1912. Serial No. 899,618.

To all whom it may concern:

Be it known that I, GEORGE E. Os'rnou'r, a citizen of the United States, and a resident of \Vatervliet, county of Albany, State of New York, have invented certain new and useful Improvements in Automatic'Glove- Stitching Machines, of which the following is a specification.

My invention relates to sewing machines for making gloves, and particularly to such machines when used for placing rows of ornamental stitching upon the backs of gloves, as is usual in their manufacture.

The object of my invention is to provide mechanism for sewing machines as aforesaid such that the rows of stitching will be of definite and determined length.

A further object of my invention is to so arrange the mechanism that each row of stitches will be preceded by a certain nuniher of dead stitches (2'. e. stitches made without advance of the goods) and followed by similar stitches; these dead stitches will, of course, be looked like the usual running stitches.

A still further object of my invention is to provide mechanism as above which shall he automatic in its operation, 2'. 6., which shall only require to have the machine started in order to first form a definite nun1- ber of dead stitches, then a row, of deter' mined length. of running stitches, then a second set of dead stitches, and then to stop, when the glove may be removed or may be reset upon the machine for the formation of a second row of stitches.

. Other features of my i vention comprise means for varying or determining the length of the rows of running stitches. 7

Still other features of my invention will appear as thespecification proceeds. My invention will be better understood by referring to the drawings accompanying in which a preferred embodiment thereof is represented as applied to a sewing machine of the lVheeler and lVilson type.

In the drawings Figure i represents a front elevation of the machine; Fig. 2 represents a sectional elevation along the line of Fig. 1 showing the driving pulley in locked position; Fig. 3 represents a sectional plan view along the line 3-3 of Fig. 1: Fig. 5': represents the same view as but on a somewhat largerscale, and with the driving pulley in unlocked position. Fig. 5 is a view similar to Fig. l but taken from the reverse side, '2'. 8., it is a sectional elevation taken from the left and along the line of Fig. l; Fig. 6 represents a sectional plan view along the line 6-8 of Fig. 2; Figs. 2'', 8, 9 and 10 represent, re spectively, sectional elevations taken along the lines '7-7, 88, 9 9 and 10-40 of Fig. 3.

Before describing my invention in detail ,1 will say that What I have done in applymg my invention tothe particular sewing machine here selected may be briefly stated as follows: I have arran ed the driving pulleys so as to be normally oose upon the driving shaft but have provided a clutch, operable at will, for locking pulley to shaft. I

hate also. provided a ratchet Wheel, actuated by the driving shaft, which carries a cam sector so arranged with reference to the feed which advances the glove that, for a certain number of revolutions of the driving shaft'after the clutch is thrown in, the

feed is inoperative so that only dead stitches are formed. is the ratchet Wheel revolves the cam sector also revolves and permits the feed to become operative and to remain so until the cam again comes around and throws out the feed. Dead stitches will then he ferried until the cam has progresse sufiiciently far to engage a trip which unlocks the clutch and simultaneously causes a brake to be clamped upon the driving shaft whereby the latter is instantaneously stopped. The presser foot may then he raised and the glove reset for another row of stitches. The driving pulley is running continuously; all that is neces sary to form a row of stitches, preceded and followed by knotted dead stitches, is to clamp down the presser foot upon the glove and to throw the clutch.

Referring now to the drawin s, the driving shaft 1 passes through a gear box 2 which is attached, at one end of the machine; to the main frame thereof. To this shaft is fixed, by keying or otherwise. a collar 3 provided with an annular recess 3" and flanged heads l and having on the inner side of one of said heads. an eccentric carrving an eccentric strap rod 6, the latter provided with a slot which engages a pin g" fixed to the The eccentric rod carries a plurality of'pawls 8 which may be separately held in either an' upper or lower position by means of springs ing a different number of teeth, is pivot ally fixed to the Wall of the gear box in position such that for each pawl 8 there Is a wheel with which said. pawl is adapted to be engaged. Pawls 9 permit said wheels to be rotated in but one direction. Carried upon the.same axis as the wheels 9, so as to be revolved with said wheels, is a cam sector 10. Pivoted adjacent "to the periphery of the ratchet wheels 9 is a link 11, the outer end of which is connected through other links 12 and 13 to a shaft 1% supported beneath the bed plate of the machine and extending nearly the entire length thereof. A s ring-'15 held in compression between said ed plate andau arm 16 fixed to shaft 14 tends to keep the link 11 pressed upwardly and a roller 17 attached to said link in position to be met by the cam sector 103as it revolves.

A 18 which operates the lock stitch mechanism below the bed plate is connected with thedriving shaft in the usual way by cranks 18'', links 18 and upper cranks (not shown) so as to be revolved thereby; to this shaft isfixed a cam 19 which is'embraced by a yoke 20 constituting one arm of a bell crank pivoted at 21 in alinement with a rock-shaft 22which carries at its outer end an arm 23. The other arm 24: of the bell crank carries a pin 25 which projects laterally into a slot considerably wider than the pin, formed in an arm 26 fixed to the inner end of shaft 22, while the outer end of shaft 14 carries an arm 27 which has, at its outer end, a slide so enga ed with the arm 26 that, when the shaft 14: 1S rocked,

a wedge 28 forming part of said slide is either moved downwardly so as to hold pin,

25 firmly against one wall of the slot or upwardly out of the way of said pin. The

width of the slot isso determined that, in this last position, rotation of the eccentric 19 and consequent rocking of the bell crank does not affect the shaft 22 carrying the arm 23, whereas when the wedge is down a and pin 25 held against the wall of the slot the bell crank is immovably coupled to shaft 22 which is, therefore, rocked as the eccentrio 19 revolves, so as to cause the arm 23 to be moved regularly to and from the bed plate through a'small angle for each revolution.

The feed 29 and the mechanism by which it is operated from shaft 18 is of the construction usual with the sewing machine to which I have'here elected to apply my invention. For each reyolution of said shaft the shaft 30, to which the feed is linked,

rocks once to and fro, thus pushing the feeder to the rear and again carrying it for ward. The outer end of the arm 31, to which the feeder is attached, rests upon the outer end of the arm 23.

fa'strap brake 32 has one end fastened to the wall of the gear be at 33; after passing around the collar 3 the other end of this brake is joined by a link El to the shorter arm of a bell crank lever 00 pivoted at to the gear box. The longer end of this bell crank is pulled downwardly by a tension spring 37 and in this position, Fig. 4, it will be seen that the brake is clamped; from this longer arm a lifting link 38 extends downwardlv and is adapted to be engaged by a pin fixed in a vertically slidabu. wedge 10 which is itself fixed to the top of a rod 41 the lower end of which is engaged by the end of an arm' 1L2 forming part of an elbow lever pivoted to the machine below the bed plate and having a pad 43 adapted to be pressed by the knee. A spring 43 tends to keep arm 42 normally down. I

A bell crank i i has a vertical arm the outer end of which is notched to receive the end of the longer arm of lOGll C1%11k 35 when the same is pushed upwardly and the strap brake 32 is released. The other arm 45, of hell crank a l, extends laterally and lies over a pi'n'46 fixed to the lower end of a vertically slidable release bolt 47.

Pivotally mounted at 48, a little below and to one side of the ratchet wheels 9, is a bell crank having a shorter arm provided with a wheel 49 adapted be contacted by the cam sector 10, and a longer arm carrying a pivoted lifting pawl 50 arranged to engage a lug 51 projecting laterally from the release bolt 47. A spring acts upon the lifting pawl to keep it pressed toward the release bolt. A second spring 53 acts upon the longer arm which carries the lifting pawl to keep said arm pressed down- Wardly and the wheel -l9 against the cam sector 10, or radially within the outer pe- 56 carried by the lifting pawl 50 and this will force said pawl out of engagement with lug 51 and allow release bolt 47' to drop.

Pivoted at 57 upon the inner face of the collar 3 (thus revolving with the driving shaft) is a cam 58 one end of which engages a rocker 59 to which is fixed a driving wheel 0% revoludrive wheel, s for lacking 18,?)

211 further mam; er

ing Limekiln-e a aft, manual mean 11 ed st sew -g sh through '2 to yoke be pushed u 'nvarc'd r staring" 15 upon arm to be drawn aft :2

a feed mechanism normally dead, a ratchet said drivewheel and drive shaft together,

3. In a sewing machine, a drive wheel, a driving shaft, feed mechanism normally dead, manual means for locking the drive wheel and driving shaft together, a ratchet wheel driven by said shaft, means actuated 'by said ratchet wheel after it has reversedthrough a definite angle to thereby throw on the feed, other means actuated by said ratchet wheel after it has revolved through a further angle to throw Hi the feed, further means actuated later the ratchet wheel to unlock the drive wheel from the)? drive shaft, and an automatically acting brake to stop and hold the driving shaft.

In testimony whereof, I have hereunto set, my hand in the presence of two subscribingwitnesses.

GEORGE E. OATHOUT.

Witnesses:

E. F. MEHLICK, E. M. HAHN. 

